It's unfortunate that we're past the point where all quantum computing progress is public. Between this and the unbearable secrecy of AI labs, balkanization of knowledge is in full force.
I think the incentive to share progress is still orders of magnitude higher than the incentive to keep it private.
You are assuming they have things to hide about QC...
I think the incentive to share progress is still orders of magnitude higher than the incentive to keep it private.